The fortran-based por code was developed by Fabian Lüghausen [1]}. It is a customized version of ramses [2]}, which exclusively uses Newtonian dynamics to compute gravity. por can compute gravity using MOND by numerically solving Equation REF . Since por is a patch to ramses, it inherits use of the adaptive mesh refinement (AMR) technique. por is equipped to handle particles, gas dynamics, and star formation, and can be applied to diverse problems. It allows the user to compute gravity in both Milgromian and Newtonian frameworks [1]}.
